climate control fan" ON in full or OFF"

When the car is started the blower is on full " MAX "setting even though the climate control unit shown " MIN " setting, ie, two bars. If I try to press the fan down speed button, the climate control unit will turned OFF, and if I press the fan up speed button, the climate control unit will turned ON in full blowing setting, ie, all bars are on. And if I try to adjust the fan speed down by just press the down speed button, the unit is OFF again.